User's Manual

Rajant Corporation BreadCrumb
®
JR User Guide - PRELIMINARY
20-100035-001 Version: 1.00-pre1
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BreadCrumb JR provides one Type N antenna connector located on the top of the enclosure (see
Figure 3).
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To avoid possible damage to the BreadCrumb radio, always connect or disconnect
the external antenna with the power to the BreadCrumb JR off.
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All of the signals and features of BreadCrumb JR can be accessed through the 10-pin Amphenol
connector on the enclosure (see Figure 3 and Figure 4). The five interfaces provided by this
connector are input power, Ethernet, GPS data, 3.3 V output power, and GPIO, which are described
in more detail in the following sections.
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Figure 3: BreadCrumb JR Enclosure Features